2ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ مُحَمَّدِ بْنِ الْحُسَيْنِ عَنْ يَحْيَى بْنِ عَمْرِو بْنِ خَلِيفَةَ الزَّيَّاتِ عَنْ عَبْدِ الله بْنِ بُكَيْرٍ عَنْ بَعْضِ أَصْحَابِنَا عَنْ أَحَدِهِمَا (عَلَيْهِما السَّلاَم) قَالَ قَالَ رَسُولُ الله (صلَّى اللهُ عَلَيْهِ وَآلِه) يَا مَعْشَرَ الشَّبَابِ عَلَيْكُمْ بِالْبَاهِ فَإِنْ لَمْ تَسْتَطِيعُوهُ فَعَلَيْكُمْ بِالصِّيَامِ فَإِنَّهُ وِجَاؤُهُ.
2. Muhammad ibn Yahya has narrated from Muhammad ibn al-Husayn from Yahya ibn ‘Amr ibn Khalifah al-Zayyat from ‘Abd Allah ibn Bukayr from certain individuals of our people who has said the following: “One of the two Imam, ‘Alayhim al-Salam, has stated this Hadith. ‘The Messenger of Allah, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, has said, “O young people, you may have carnal relations. If you are unable to do so, you should fast; it has a castrating effect (on carnal desires).””’