عَنْ زَيْدِ بْنِ خَالِدٍ الْجُهَنِيِّ رَضِيَ اللَّهُ عَنْهُ قَالَ: سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ يَقُولُ: ((مَنْ مَسَّ فَرْجَهُ فَلْيَتَوَضَّأْ))
It is narrated from Sayyiduna Zaid bin Khalid Juhani (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: Whoever touches his private part should perform ablution.