4727 - وَ رُوِيَ عَنْ هَارُونَ بْنِ مُسْلِمٍ قَالَ: كَتَبْتُ إِلَى صَاحِبِ اَلدَّارِ عَلَيْهِ اَلسَّلاَمُ وُلِدَ لِي مَوْلُودٌ وَ حَلَقْتُ رَأْسَهُ وَ وَزَنْتُ شَعْرَهُ بِالدَّرَاهِمِ وَ تَصَدَّقْتُ بِهِ قَالَ "لاَ يَجُوزُ وَزْنُهُ إِلاَّ بِالذَّهَبِ أَوِ اَلْفِضَّةِ وَ كَذَا جَرَتِ اَلسُّنَّةُ".
Hadith.4727 - It was narrated from Harun ibn Muslim who said:
I wrote to the 'Sahib al-Dar' (Master of the House Imam Muhammad ibn Hassan Al-Mahdi 
) saying: "A child was born to me, and I shaved his head, weighed his hair in dirhams, and gave its equivalent in charity."
Imam replied: "It is not permissible to weigh it except with gold or silver, and this is the established Sunnah."
