The Messenger of Allah ﷺ was asked, "Which speech is best?"He replied, "That which Allah has chosen for His angels," or he said, "for His servants, Glory be to Allah and praise be to Him."
أن رسول الله ﷺ سئل: أي الكلام أفضل؟ قال: ما اصطفى الله لملائكته أو لعباده: سبحان الله وبحمده.
Muslim narrated it in the Book of Remembrance and Supplication (2731) from Zuhayr bin Harb, who said, Habban bin Hilal narrated to us, who said, Wahib narrated to us, who said, Jareeri narrated to us, from Abu Abdullah Jasri, from Ibn Samit (that is, Ubada), from Abu Dharr, who mentioned it.