It is narrated from Imām as-Ŝādiq (as)...

It is narrated from Imām as-Ŝādiq (as): “Somebody who has not been circumcised should not lead prayers, and his witness is not accepted, and if he dies, do not pray for him as he has left the biggest sunnah of the Prophet (S), unless he has left it for fear of death (resulting from circumcision).” It is recommended to recite the following Du°ā at the time of circumcision[^25]: أَللٌّهُمَّ هٌذِهِ سُنَّتُكَ وَ سُنَّةُ نَبِيِّكَ (صَلَوَاتُكَ عَلَيْهِ وَ آلِهِ) وَ اتِّـبَاعٌ مِنَّا لَكَ وَ لِدِيـنِكَ بِمَشِيَّـتِكَ وَ بِإِرَادَتِكَ لِأَمْرٍ أَرَدْتَهُ وَ قَضَآءٍ حَـتَمْتَهُ وَ أَمْرٍ أَنْفَذْتَهُ فَأَذَقْتَهُ حَرَّ الْحَدِيدِ فِي