If a person has sexual intercourse with his wife, but does not experience orgasm, he should wash his organ and perform an ablution.
عَنْ رَسُولِ اللَّهِ ﷺ أَنَّهُ قَالَ فِي الرَّجُلِ يَأْتِي أَهْلَهُ ثُمَّ لاَ يُنْزِلُ قَالَ يَغْسِلُ ذَكَرَهُ وَيَتَوَضَّأُ
[Machine] From the Messenger of Allah ﷺ , he said, "Whoever comes to his spouse and does not ejaculate, he should wash his private parts and perform ablution." Abd Allah said, "My father narrated to me from a trustworthy person, who heard it from another trustworthy person."
عَنْ رَسُولِ اللهِ ﷺ فِي الَّذِي يَأْتِي أَهْلَهُ ثُمَّ لَا يُنْزِلُ يَغْسِلُ ذَكَرَهُ وَيَتَوَضَّأُ قَالَ عَبْدُ اللهِ قَالَ أَبِي الْمَلِيُّ عَنِ الْمَلِيِّ ثِقَةٌ عَنْ ثِقَةٍ