Narrated ‘Iesa bin Yazdad from his father (ra):

Allah’s Messenger (ﷺ) said: “When one of you passes urine, he should empty his penis three times”. [Reported by Ibn Majah through a weak chain of narrators].

وَعَنْ عِيسَى بْنِ يَزْدَادَ, عَنْ أَبِيهِ قَالَ: قَالَ رَسُولُ اَللَّهِ ‏- صلى الله عليه وسلم ‏-{ إِذَا بَالَ أَحَدُكُمْ فَلْيَنْثُرْ ذَكَرَهُ ثَلَاثَ مَرَّاتٍ } رَوَاهُ اِبْنُ مَاجَه بِسَنَدٍ ضَعِيف ٍ [1]‏ .‏