サヒーフ・アル＝ブハーリー #68
Sahih (Authentic)
The Prophet (ﷺ) used to take care of us in preaching by selecting a suitable time, so that we might not get bored. (He abstained from pestering us with sermons and knowledge all the time)
伝承の連鎖（イスナード）
Narrated Ibn Mas`ud