"The Prophet was asked about a man who finds wetness and he does not remember having a wet dream. So he said: 'He is to perform Ghusl. And (he was asked) about a man who had a wet dream but does not find any wetness, so he said: 'No Ghusl is required of him.' Umm Salamah said: 'O Messenger of Allah! Is the woman required to perform Ghusl if she sees that?' He replied: 'Yes. Indeed women are the partners of men.'"  

سُئِلَ رَسُولُ اللَّهِ ﷺ عَنِ الرَّجُلِ يَجِدُ الْبَلَلَ وَلاَ يَذْكُرُ احْتِلاَمًا قَالَ يَغْتَسِلُ وَعَنِ الرَّجُلِ يَرَى أَنَّهُ قَدِ احْتَلَمَ وَلَمْ يَجِدْ بَلَلاً قَالَ لاَ غُسْلَ عَلَيْهِ قَالَتْ أُمُّ سَلَمَةَ يَا رَسُولَ اللَّهِ هَلْ عَلَى الْمَرْأَةِ تَرَى ذَلِكَ غُسْلٌ قَالَ نَعَمْ إِنَّ النِّسَاءَ شَقَائِقُ الرِّجَالِ