I used to get emotional urethral discharges frequently and felt shy to ask Allah's Apostle about it. So I requested AlMiqdad bin Al-Aswad to ask (the Prophet ) about it. Al-Miqdad asked him and he replied, "On has to perform ablution (after it)."
— Sahih Bukhari, Volume 1, Book 4: Ablutions (Wudu'), Hadith #178
