Bulugh al-Maram 106
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 .‏‏1 ‏- ضعيف.‏ رواه ابن ماجه (326)‏ .‏