وَمِنْ مُسْنَدِ عَلِيِّ بْنِ أَبِي طَالِبٍ رَضِيَ اللَّهُ عَنْهُ
5  
Musnad 'Ali Ibn Abi Talib
Musnad Ahmad 967, 968
It was narrated that Abu Hurairah said:
I heard the Messenger of Allah (ﷺ) say: Were it not that it would be too difficult for my ummah, I would have commanded them to use the siwak every time of prayer, and I would have delayed Isha` until the first third of the night had passed, because when the first third of the night has passed. Allah may he be exalted descends to the first heaven and stays there until dawn comes, and says: Is there any asking so that he might be given? Is there anyone praying so that he might be answered? Is there any sick person asking for healing so that he might be healed? Is there any sinner asking for forgiveness, so that he might be forgiven? A hadeeth like that of Abu Hurairah was narrated from `Ali bin Abi Talib (رضي الله عنه) from the Prophet (ﷺ) Abi Talib.
حَدَّثَنَا يَعْقُوبُ، حَدَّثَنَا أَبِي، عَنْ مُحَمَّدِ بْنِ إِسْحَاقَ، حَدَّثَنِي سَعِيدُ بْنُ أَبِي سَعِيدٍ الْمَقْبُرِيُّ، عَنْ عَطَاءٍ، مَوْلَى أُمِّ صُبَيَّةَ عَنْ أَبِي هُرَيْرَةَ، قَالَ سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ لَوْلَا أَنْ أَشُقَّ عَلَى أُمَّتِي لَأَمَرْتُهُمْ بِالسِّوَاكِ عِنْدَ كُلِّ صَلَاةٍ وَلَأَخَّرْتُ عِشَاءَ الْآخِرَةِ إِلَى ثُلُثِ اللَّيْلِ الْأَوَّلِ فَإِنَّهُ إِذَا مَضَى ثُلُثُ اللَّيْلِ الْأَوَّلُ هَبَطَ اللَّهُ تَعَالَى إِلَى السَّمَاءِ الدُّنْيَا فَلَمْ يَزَلْ هُنَاكَ حَتَّى يَطْلُعَ الْفَجْرُ فَيَقُولَ قَائِلٌ أَلَا سَائِلٌ يُعْطَى أَلَا دَاعٍ يُجَابُ أَلَا سَقِيمٌ يَسْتَشْفِي فَيُشْفَى أَلَا مُذْنِبٌ يَسْتَغْفِرُ فَيُغْفَرَ لَهُ.

حَدَّثَنَا يَعْقُوبُ حَدَّثَنَا أَبِي عَنِ ابْنِ إِسْحَاقَ حَدَّثَنِي عَمِّي عَبْدُ الرَّحْمَنِ بْنُ يَسَارٍ عَنْ عُبَيْدِ اللَّهِ بْنِ أَبِي رَافِعٍ مَوْلَى رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَنْ أَبِيهِ عَنْ عَلِيِّ بْنِ أَبِي طَالِبٍ رَضِيَ اللَّهُ عَنْهُ عَنْ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ مِثْلَ حَدِيثِ أَبِي هُرَيْرَةَ‏.‏

Grade: Hasan because of corroborating evidence; this is a Da'if isnad because Ata' al-Madani is unknown], Hasan (Darussalam) [] (Darussalam)
Reference : Musnad Ahmad 967, 968
In-book reference : Book 5, Hadith 392