Full Sharh — Mishkat al-Masabih 530
وَعَنْ عَمْرِو بْنِ شُعَيْبٍ عَنْ أَبِيهِ عَنْ جَدِّهِ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مُرُوا أَوْلَادَكُمْ بِالصَّلَاةِ وَهُمْ أَبْنَاءُ سَبْعِ سِنِينَ وَاضْرِبُوهُمْ عَلَيْهَا وَهُمْ أَبْنَاءُ عَشْرٍ سِنِين وَفَرِّقُوا بَيْنَهُمْ فِي الْمَضَاجِعِ» . رَوَاهُ أَبُو دَاوُدَ وَكَذَا رَوَاهُ فِي شرح السّنة عَنهُ وَفِي المصابيح عَن سُبْرَة بن معبد
English Translation
‘Amr b. Shu'aib said on his father’s authority that his grandfather reported God’s Messenger as saying, “Command your children to observe prayer when they are seven years old, and beat them for sleep together.” Abu Dawud transmitted it; and Baghawi transmitted it thus from him in Sharh as-sunna but in al-Masabih from Sabra b. Ma‘bad.
Source
Mishkat al-Masabih(مشكاة المصابيح)
Prayer
Hadith Number
530