✅ Answer: Please pay attention to the following narration:

1 عَنْ إِسْحَاقَ بْنِ عَمَّارٍ عَنِ الْعَبْدِ الصَّالِحِ قَالَ: قُلْتُ لَهُ إِنَّ لَنَا جَاراً يُكَتِّبُ وَ قَدْ سَأَلَنِي أَنْ أَسْأَلَكَ عَنْ عَمَلِهِ قَالَ مُرْهُ إِذَا دُفِعَ إِلَيْهِ الْغُلَامُ أَنْ يَقُولَ لِأَهْلِهِ إِنِّي إِنَّمَا أُعَلِّمُهُ الْكِتَابَ وَ الْحِسَابَ وَ أَتَّجِرُ عَلَيْهِ بِتَعْلِيمِ الْقُرْآنِ حَتَّى يَطِيبَ لَهُ كَسْبُهُ.

📚 Al-Tahdhib, Vol. 6, p. 364

Ishaq ibn Ammar said: I said to the righteous servant (Imam Kadhim, peace be upon him):

We have a neighbor who teaches writing and he has asked me to ask you about the (income from) his work. He said: Instruct him that when a child is entrusted to him, he should say to his family: I will teach him writing and math, and as for teaching the Qur'an, I seek a heavenly and divine reward (i.e., I will take the reward for teaching the Qur'an from God) so that his earnings become pure (and lawful) for him!

✅ Based on the above narration and others, there is no prohibition or problem in receiving a fee for teaching permissible knowledge such as writing, math, mathematics, geometry, physics, and the like. However, the teaching of the Qur'an should be done without a fee and for a heavenly reward.

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

https://feghh14.com/en

In the name of Allah, the Most Gracious, the Most Merciful

This morning, Monday, the 27th of Dhul-Qi'dah 1443, was the last day of the lunar month that the morning crescent was visible in the east, and the nights of conjunction begin tonight.

اللّهُمَّ صَلِّ عَلَی مُحَمَّدٍ وَ آلِ مُحَمَّدٍ وَ عَجِّلْ لِوَلِیِّکَ الْفَرَجَ وَ الْعَافِیَةَ وَ النَّصْرَ

https://feghh14.com/en/158