Sahih Al Bukhari 1: Chapter 3, Hadith 132

(132) Whosoever felt shy (to ask something) and then requested another person to ask on his behalf

حَدَّثَنَا مُسَدَّدٌ، ‏‏‏‏‏‏قَالَ:‏‏‏‏ حَدَّثَنَا عَبْدُ اللَّهِ بْنُ دَاوُدَ، ‏‏‏‏‏‏عَنِ الْأَعْمَشِ، ‏‏‏‏‏‏عَنْ مُنْذِرٍ الْثَّوْرِيِّ، ‏‏‏‏‏‏عَنْ مُحَمَّدِ ابْنِ الْحَنَفِيَّةِ، ‏‏‏‏‏‏عَنْ عَلِيِّ، ‏‏‏‏‏‏قَالَ:‏‏‏‏ "كُنْتُ رَجُلًا مَذَّاءً، ‏‏‏‏‏‏فَأَمَرْتُ الْمِقْدَادَ أَنْ يَسْأَلَ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ، ‏‏‏‏‏‏فَسَأَلَهُ، ‏‏‏‏‏‏فَقَالَ:‏‏‏‏ فِيهِ الْوُضُوءُ".

SAHIH HADITH:

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

REFERENCE:

Sahih Al Bukhari 1: Chapter 3, Hadith 132