١٧ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ مُحَمَّدِ بْنِ الْحُسَيْنِ عَنْ مُحَمَّدِ بْنِ يَحْيَى بْنِ حَبِيبٍ قَالَ كَتَبْتُ إِلَى أَبِي الْحَسَنِ الرِّضَا (عَلَيْهِ الْسَّلام) يَكُونُ عَلَيَّ الصَّلاَةُ النَّافِلَةُ مَتَى أَقْضِيهَا فَكَتَبَ (عَلَيْهِ الْسَّلام) أَيَّةَ سَاعَةٍ شِئْتَ مِنْ لَيْلٍ أَوْ نَهَارٍ.
17. Muhammad ibn Yahya has narrated from Muhammad ibn al-Husayn from Muhammad ibn Yahya ibn Habib who has said the following: “I once wrote to abu al-Hassan, al-Rida’ , asking, ‘There is optional Salah (prayer) on me, when should I perform Qada’ (compensatory prayer for) such missed Salah (prayer)?’ He (the Imam) wrote to me in answer, ‘You can perform them whenever you like, during the day or night.’” 