✅ Answer: Please refer to the following narration:

1⃣عَنِ الْحُسَیْنِ بْنِ سَعِیدٍ عَنْ حَمَّادِ بْنِ عِیسَی عَنْ حَرِیزٍ عَنْ مُحَمَّدِ بْنِ مُسْلِمٍ عَنْ أَبِی جَعْفَرٍ قَالَ: سَأَلْتُهُ عَنِ الرَّجُلِ یُعَالِجُ الدَّوَاءَ لِلنَّاسِ فَیَأْخُذُ عَلَیْهِ جُعْلًا فَقَالَ لَا بَأْسَ بِهِ.

📚 Al-Tahdhib, Vol. 6, p. 375

Muhammad bin Muslim says: I asked Imam Sadiq (AS) about a person who prepares medicine for people and receives payment for it; the Imam replied: There is no problem with it!

✅ Receiving payment for preparing lawful medicine is generally permitted, even if the preparation of the medicine is based on the hadiths of the Ahl al-Bayt (peace be upon them) and it does not fall under the category of earning worldly gains through religion.

اللَّهُمَّ صَلِّ عَلَی مُحَمَّدٍ وَ آلِ مُحَمَّدٍ وَ عَجِّلْ لِوَلِیِّکَ الْفَرَجَ وَ الْعَافِیَةَ وَ النَّصْر

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