Abu Musa Ashari reported,

The Prophet ﷺ said, "Keep close to this Quran. By the One in whose hand is Muhammad's soul, it slips away faster than camels from their tethers."The wording of this hadith is from Ibn Barrad.

Muslim 1844

Sahih

حدثنا عبد الله بن براد الأشعري وأبو كريب قالا حدثنا أبو أسامة عن بريد عن أبي بردة

عن أبي موسى

عن النبي ﷺ قال تعاهدوا هذا القرآن فوالذي نفس محمد بيده لهو أشد تفلتا من الإبل في عقلها ولفظ الحديث لابن براد

مسلم 1844صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Muslim
Book
Virtues of the Quran and what relates to it
Chapter
Command to constantly review the Quran and the dislike of saying "I forgot such and such a verse", and the permissibility of saying "I was made to forget it"
Numbering
Darussalam 1844
Muslim 1844