كتاب النكاح
13  
Marriage
(17b)
Chapter: Maintenance, and a Slave’s Rights - Section 2
(17)
باب النفقات وحق المملوك - الفصل الثاني
Mishkat al-Masabih 3365
Abu Umama told that God’s Messenger gave ‘Ali a youth and said, “Do not beat him, for I have been prohibited from beating people who observe the prayer, and I have seen him praying.” This is the wording in al-Masabih.
أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسلم وَهَبَ لِعَلِيٍّ غُلَامًا فَقَالَ: «لَا تَضْرِبْهُ فَإِنِّي نُهِيتُ عَنْ ضَرْبِ أَهْلِ الصَّلَاةِ وَقَدْ رَأَيْتُهُ يُصَلِّي» . هَذَا لفظ المصابيح
Reference : Mishkat al-Masabih 3365
In-book reference : Book 13, Hadith 278