✅ Answer: Please pay attention to the following narrations:

1 عَنْ عَلِيٍّ فِي حَدِيثِ الْأَرْبَعِمِائَةِ قَالَ: مَنْ كَانَ عَلَى يَقِينٍ فَشَكَّ فَلْيَمْضِ عَلَى يَقِينِهِ فَإِنَّ الشَّكَّ لَا يَنْقُضُ الْيَقِينَ

📚 Al-Khisal, p. 619, hadith 629

Ali (peace be upon him) said in the four hundred hadith: 'Whoever is on certainty and then doubts, let him pass on his certainty, for indeed doubt does not break certainty!'

2 عَنْ إِسْحَاقَ بْنِ عَمَّارٍ قَالَ: قَالَ لِي أَبُو الْحَسَنِ الْأَوَّلُ إِذَا شَكَكْتَ فَابْنِ عَلَى الْيَقِينِ قَالَ قُلْتُ : هَذَا أَصْلٌ قَالَ نَعَمْ.

📚 Al-Faqih, Vol. 1, p. 351

Ishaq ibn Ammar said: 'Imam Kadhim (peace be upon him) said to me: 'If you doubt, base it on certainty!'

I said: 'Is this a principle?' He said: 'Yes!'

3 عن زرارة عن أبي جعفر قال : لَا يَنْقُضُ الْيَقِينَ أَبَداً بِالشَّكِّ و لَكِنْ يَنْقُضُهُ بِيَقِينٍ آخَرَ

📚 Al-Tahdhib, Vol. 1, p. 8

Imam Baqir (peace be upon him) said: 'A person never breaks certainty with doubt, but he breaks it with another certainty!'

✅ According to the principles mentioned in the above narrations and others, a person who was in a state of janabah but doubts whether he performed the ghusl of janabah is obligated to base it on certainty and not break his certainty with doubt. Therefore, such a person is obligated to perform his ghusl of janabah and repeat any prayer he has performed in this state.

✅ Pray more for the hastening of the relief:

اللَّهُمَّ صَلِّ عَلَی مُحَمَّدٍ وَ آلِ مُحَمَّدٍ

وَ عَجِّلْ لِوَلِیِّکَ الْفَرَجَ وَ الْعَافِیَةَ وَ النَّصْرَ