Sahih al-Bukhari

Sahih al-Bukhari 132

Whosoever felt shy (to ask something) and then requested another person to ask on his behalf
Arabic hadith text
حَدَّثَنَا مُسَدَّدٌ، قَالَ حَدَّثَنَا عَبْدُ اللَّهِ بْنُ دَاوُدَ، عَنِ الأَعْمَشِ، عَنْ مُنْذِرٍ الثَّوْرِيِّ، عَنْ مُحَمَّدٍ ابْنِ الْحَنَفِيَّةِ، عَنْ عَلِيٍّ، قَالَ كُنْتُرَجُلاً مَذَّاءً فَأَمَرْتُ الْمِقْدَادَ أَنْ يَسْأَلَ النَّبِيَّ صلى الله عليه وسلم فَسَأَلَهُ فَقَالَ ‏"‏ فِيهِ الْوُضُوءُ ‏"
Translation
Narrated `Ali

I used to get the emotional urethral discharge frequently so I requested Al-Miqdad to ask the Prophet (ﷺ) about it. Al-Miqdad asked him and he replied, "One has to perform ablution (after it)." (See Hadith No. 269).