The Sufficient (Vol 3) · Hadith 1836 (#Ḥadīth #4)
Chapter 92 | Salah (prayer) of Fatimah al-Zahra’, ‘Alayha al-Salam, and other Salawat (prayers) to build up Interests
4ـ عَلِيُّ بْنُ مُحَمَّدٍ عَنْ بَعْضِ أَصْحَابِنَا عَنْ أَبِي الْحَسَنِ الرِّضَا (عَلَيْهِ الْسَّلام) قَالَ مَنْ صَلَّى الْمَغْرِبَ وَبَعْدَهَا أَرْبَعَ رَكَعَاتٍ وَلَمْ يَتَكَلَّمْ حَتَّى يُصَلِّيَ عَشْرَ رَكَعَاتٍ يَقْرَأُ فِي كُلِّ رَكْعَةٍ بِالْحَمْدِ وَقُلْ هُوَ الله أَحَدٌ كَانَتْ عِدْلَ عَشْرِ رِقَابٍ.
4. Ali ibn Muhammad has narrated from certain individuals of our people who have said the following: “Abu al-Hassan al-Rida , has said, ‘If one after performing Maghrib (Salah (prayer) soon after sunset), the four Rak‘at and before speaking to anyone performs ten Rak‘at Salah (prayer), recites al-Fatihah and Chapter 112 of the Holy Quran it is equal in reward to setting free of ten slaves.”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).