It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Holy Prophet (peace and blessings be upon him) said: When one third of the night remains, Allah Almighty descends to the lowest heaven and announces: Who is there who will supplicate to Me so that I may accept it? Who is there who will seek forgiveness from Me so that I may forgive him? Who is there who will ask Me for sustenance so that I may grant him sustenance? Who is there who will request the removal of afflictions so that I may remove his afflictions? This announcement continues until the break of dawn.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 10756
Hadith Gradingحکم دارالسلام:حديث صحيح، خ: 1145، م: 758، وهذا إسناد ضعيف الجهالة أبى جعفر، لكنه متابع