As for the meaning of Ghayb here, the Salaf have different explanations of it, all of which are correct, indicating the same general meaning. For instance, Abu Ja`far Ar-Razi quoted Ar-Rabi` bin Anas, reporting from Abu Al-`Aliyah about Allah's statement, i
﴿ يُؤۡمِنُونَ بِٱلۡغَيۡبِ ﴾
((Those who) have faith in the Ghayb), "They believe in Allah, His angels, Books, Messengers, the Last Day, His Paradise, Fire and in the meeting with Him. They also believe in life after death and in Resurrection. All of this is the Ghayb.'' Qatadah bin Di`amah said similarly.
Sa`id bin Mansur reported from `Abdur-Rahman bin Yazid who said, "We were sitting with `Abdullah bin Mas`ud when we mentioned the Companions of the Prophet and their deeds being superior to our deeds. `Abdullah said, `The matter of Muhammad was clear for those who saw him. By He other than Whom there is no God, no person will ever acquire a better type of faith than believing in Al-Ghayb.' He then recited,
(Alif Lam Mim. This is the Book, wherein there is no doubt, a guidance for the Muttaqin. Those who believe in the Ghayb), until,
﴿ ٱلۡمُفۡلِحُونَ ﴾
(the successful). '' Ibn Abi Hatim, Ibn Marduwyah and Al-Hakim, in his Mustadrak, recorded this Hadith. Al-Hakim commented that this Hadith is authentic and that the Two Shaykhs - Al-Bukhari and Muslim - did not collect it, although it meets their criteria.
Ahmad recorded a Hadith with similar meaning from Ibn Muhayriz who said: I said to Abu Jumu`ah, "Narrate a Hadith for us that you heard from the Messenger of Allah.'' He said, "Yes. I will narrate a good Hadith for you. Once we had lunch with the Messenger of Allah . Abu `Ubaydah, who was with us, said, `O Messenger of Allah! Are people better than us We embraced Islam with you and performed Jihad with you.' He said,
« نَعَمْ قَوْمٌ مِنْ بَعْدِكُمْ يُؤْمِنُونَ بِي وَلَمْ يَرَوْنِي »
(Yes, those who will come after you, who will believe in me although they did not see me.)''
This Hadith has another route collected by Abu Bakr bin Marduwyah in his Tafsir, from Salih bin Jubayr who said: `Abu Jumu`ah Al-Ansari, the Companion of the Messenger of Allah, came to Bayt Al-Maqdis (Jerusalem) to perform the prayer. Raja' bin Haywah was with us, so when Abu Jumu`ah finished, we went out to greet him.
When he was about to leave, he said, "You have a gift and a right. I will narrate a Hadith for you that I heard from the Messenger of Allah. '' We said, "Do so, and may Allah grant you mercy.'' He said, "We were with the Messenger of Allah, ten people including Mu`adh bin Jabal. We said, "O Messenger of Allah! Are there people who will acquire greater rewards than us We believed in Allah and followed you.' He said,
When he was about to leave, he said, "You have a gift and a right. I will narrate a Hadith for you that I heard from the Messenger of Allah. '' We said, "Do so, and may Allah grant you mercy.'' He said, "We were with the Messenger of Allah, ten people including Mu`adh bin Jabal. We said, "O Messenger of Allah! Are there people who will acquire greater rewards than us We believed in Allah and followed you.' He said,
« مَا يَمْنَعُكُمْ مِنْ ذَلِكَ وَرَسُولُ اللهِ بَيْنَ أَظْهُرِكُمْ يَأْتِيكُمْ بِالْوَحْيِ مِنَ السَّمَاءِ، بَلْ قَوْمٌ بَعْدَكُمْ يَأْتِيهِمْ كِتَابٌ مِنْ بَيْنِ لَوْحَيْنِ يُؤْمِنُونَ بِهِ وَيَعْمَلُونَ بِمَا فِيهِ، أُولٰئِكَ أَعْظَمُ مِنْكُمْ أَجْرًا مَرَّتَيْن »
(What prevents you from doing so, while the Messenger of Allah is among you, bringing you the revelation from heaven There are people who will come after you and who will be given a book between two covers (the Qur'an), and they will believe in it and implement its commands. They have a greater reward than you, even twice as much.)''
﴿ وَيُقِيمُونَ ٱلصَّلَوٰةَ وَمِمَّا رَزَقۡنَـٰهُمۡ يُنفِقُونَ ﴾
(And perform Salah, and spend out of what we have provided for them)
Ibn `Abbas said that,
﴿ وَيُقِيمُونَ ٱلصَّلَوٰةَ ﴾
(And perform the Salah), means, "Perform the prayer with all of the obligations that accompany it.'' Ad-Dahhak said that Ibn `Abbas said, "Iqamat As-Salah means to complete the bowings, prostrations, recitation, humbleness and attendance for the prayer.'' Qatadah said, "Iqamat As-Salah means to preserve punctuality, and the ablution, bowings, and prostrations of the prayer.'' Muqatil bin Hayyan said Iqamat As-Salah means "To preserve punctuality for it, as well as completing ones purity for it, and completing the bowings, prostrations, recitation of the Qur'an, Tashahhud and blessings for the Prophet. This is Iqamat As-Salah.''
`Ali bin Abi Talhah reported that Ibn `Abbas said,
﴿ وَمِمَّا رَزَقۡنَـٰهُمۡ يُنفِقُونَ ﴾
(And spend out of what We have provided for them) means, "The Zakah due on their wealth.'' As-Suddi said that Abu Malik and Abu Salih narrated from Ibn `Abbas, as well as Murrah from Ibn Mas`ud and other Companions of the Messenger of Allah , that,
﴿ وَمِمَّا رَزَقۡنَـٰهُمۡ يُنفِقُونَ ﴾
(And spend out of what We have provided for them) means, "A man's spending on his family. This was before the obligation of Zakah was revealed.'' Juwaybir narrated from Ad-Dahhak, "General spending (in charity) was a means of drawing nearer to Allah, according to one's discretion and capability. Until the obligation of charity was revealed in the seven Ayat of Surat Bara'ah (chapter 9), were revealed. These abrogated the previous case.''
In many instances, Allah mentioned prayer and spending wealth together. Prayer is a right of Allah as well as a form of worshipping Him. It includes singling Him out for one's devotion, praising Him, glorifying Him, supplicating to Him, invoking Him, and it displays one's dependence upon Him. Spending is form of kindness towards creatures by giving them what will benefit them, and those people most deserving of this charity are the relatives, the wife, the servants and then the rest of the people. So all types of required charity and required spending are included in Allah's saying,
﴿ وَمِمَّا رَزَقۡنَـٰهُمۡ يُنفِقُونَ ﴾
(And spend out of what we have provided for them). The Two Sahihs recorded that Ibn `Umar said that the Messenger of Allah said,
« بُنِيَ الْإِسْلَامُ عَلَى خَمْسٍ: شَهَادَةِ أَنْ لَا إِلهَ إِلَّا اللهُ وَأَنَّ مُحَمَّدًا رَسُولُ اللهِ، وَإِقَامِ الصَّلَاةِ، وَإِيتَاءِ الزَّكَاةِ، وَصَوْمِ رَمَضَانَ، وَحَجِّ الْبَيْت »
(Islam is built upon five (pillars): Testifying that there is no deity worthy of worship except Allah and that Muhammad is the Messenger of Allah, establishing the prayer, giving Zakah, fasting Ramadan and Hajj to the House.)
There are many other Hadiths on this subject.
