Al-Kāfi
Hadith 10663ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ سَلَمَةَ بْنِ الْخَطَّابِ عَنِ الْحُسَيْنِ بْنِ سَيْفٍ عَنْ حَمَّادِ بْنِ عُثْمَانَ عَنْ مُحَمَّدِ بْنِ حَكِيمٍ عَنْ أَبِي الْحَسَنِ (عَلَيْهِ الْسَّلام) قَالَ سَمِعْتُهُ يَقُولُ إِذَا جَمَعْتَ بَيْنَ الصَّلاَتَيْنِ فَلاَ تَطَوَّعْ بَيْنَهُمَا.
3. Muhammad ibn Yahya has narrated from Salmah ibn al-Khattab from al-Husayn ibn Sayf from Hammad ibn ‘Uthman from Muhammad ibn Hakim who has said the following: “I once heard abu al-Hassan (a.s.), say, ‘If you perform two Salah (prayer), one after the other, do not perform optional Salah (prayer) between them.”’