Abu Dharr (May Allah be pleased with him) reported:
The Messenger of Allah ﷺ 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 ﷺ: "ألا أخبرك بأحب الكلام إلى الله؟ إن أحب الكلام إلى الله: سبحان الله وبحمده" ((رواه مسلم)).