صحیح ابن حبان
Ibn Hibban
كتاب الطهارة
Book of Purification
باب نواقض الوضوء - ذكر الخبر الدال على أن الأمر بالوضوء من مس الفرج إنما هو الوضوء الذي لا تجوز الصلاة إلا به
Chapter on Nullifiers of Ablution – Report indicating that the command to perform ablution after touching the private part refers to the ablution required for prayer
1 hadith
Hadith 1115
Busrah narrates that the Prophet Muhammad (peace be upon him) said: "Whoever touches his private part should perform ablution again." (Imam Ibn Hibban, may Allah have mercy on him, says:) If what was meant was to wash both hands, as some people have said, then the Prophet (peace be upon him) would not have said: "Perform ablution again," because only that ablution can be repeated which is done for prayer.