Hadith / Bulugh al-Maram / 2:307
The Book of Prayer
كتاب الصلاة
Hadith 2:307
And its basic meaning is in the Sahihain (of al-Bukhari and Muslim)].
وَأَصْلُهُ فِي اَلصَّحِيحَيْن ِ
2:307