Riyad as-Salihin, Book 16, Hadith 1412 (In-Book) ⓘ
Abu Dharr (May Allah be pleased with him) reported: The Messenger of Allah said to me, "Shall I tell you the expression that is most loved by Allah?" It is 'Subhan-Allahi wa bihamdihi' (Allah is free from imperfection and His is the praise)'."[Muslim].
وعن أبي ذر رضي الله عنه قال: قال لي رسول صلى الله عليه وسلم: "ألا أخبرك بأحب الكلام إلى الله؟ إن أحب الكلام إلى الله: سبحان الله وبحمده" ((رواه مسلم)).