Sayyiduna Abu Hurayrah (may Allah be pleased with him) and Sayyiduna Ali bin Abi Talib (may Allah be pleased with him) narrate: The Prophet (peace and blessings be upon him) said: "Were it not that I would put my Ummah to hardship, I would have ordered them to use the tooth-stick (siwak) at every prayer." (Allamah al-Haythami says:) I say: The hadith of Sayyiduna Abu Hurayrah (may Allah be pleased with him) is in the Sahih. Abdullah recorded this narration among his additions to the Musnad of Ahmad, and al-Bazzar recorded only the hadith of Sayyiduna Ali (may Allah be pleased with him), and in this narration, after the words "at every prayer", he added: "and I would have delayed the Isha prayer until a third of the night. When the first third of the night has passed, Allah Almighty descends to the lowest heaven and remains there continuously until true dawn breaks, saying: 'Is there anyone asking, that he may be given? Is there anyone supplicating, that his supplication may be answered? Is there anyone seeking intercession, that his intercession may be accepted? Is there anyone repenting and seeking forgiveness, that he may be forgiven?'"
The narrators of this narration are thiqat (trustworthy), but in the Musnad it is reported from Abu Ishaq from Ubaydullah bin Abi Rafi' as a mu'an'an narration (using "from"). Al-Bazzar recorded it from Ibn Ishaq, who says: Abd al-Rahman bin Yasar narrated this hadith to me from Ubaydullah bin Abi Rafi'. Yahya bin Ma'in declared Abd al-Rahman thiqah (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصلاة / 2543
Hadith Gradingمحدثین:إسنادہ حسن، اس کے تمام راوی ثقہ ہیں اور دوسری سند میں متابعت کی موجودگی کی وجہ سے عنعنہ کا نقص ختم اور سند متصل ثابت ہے۔