(Imām Bukhārī narrates): Ubaid bin Isma'il narrated to us, he said: Abu Usamah narrated to us, from Hisham, from his father, from Hazrat Aisha (may Allāh be pleased with her), she said:
We set out on the first day of the crescent of Dhul-Hijjah, and the Messenger of Allāh ﷺ said: Whoever wishes to enter into ihram for Umrah should do so, because if I had not sent the Hady, I too would have entered into ihram for Umrah. So some of the Companions entered into ihram for Umrah, and some entered into ihram for Hajj, and I was among those who entered into ihram for Umrah. Then the Day of Arafah found me in a state that I was menstruating; I complained of this to the Prophet ﷺ. He said: Leave your Umrah, and undo the hair of your head and comb it, and enter into ihram for Hajj. So I did this. Then when the night of Al-Hasbah came, he sent my brother Hazrat Abdur Rahman bin Abi Bakr with me; so I went to the place of Tan'im, then I entered into ihram for Umrah in place of my (previous) Umrah.
Hisham said: Nothing was required in it — no Hady, no fasting, no charity.
حَدَّثَنَا عُبَيْدُ بْنُ إِسْمَاعِيلَ، قَالَ حَدَّثَنَا أَبُو أُسَامَةَ، عَنْ هِشَامٍ، عَنْ أَبِيهِ، عَنْ عَائِشَةَ، قَالَتْ خَرَجْنَا مُوَافِينَ لِهِلاَلِ ذِي الْحِجَّةِ، فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنْ أَحَبَّ أَنْ يُهِلَّ بِعُمْرَةٍ فَلْيُهْلِلْ، فَإِنِّي لَوْلاَ أَنِّي أَهْدَيْتُ لأَهْلَلْتُ بِعُمْرَةٍ ". فَأَهَلَّ بَعْضُهُمْ بِعُمْرَةٍ، وَأَهَلَّ بَعْضُهُمْ بِحَجٍّ، وَكُنْتُ أَنَا مِمَّنْ أَهَلَّ بِعُمْرَةٍ، فَأَدْرَكَنِي يَوْمُ عَرَفَةَ وَأَنَا حَائِضٌ، فَشَكَوْتُ إِلَى النَّبِيِّ صلى الله عليه وسلم فَقَالَ " دَعِي عُمْرَتَكِ، وَانْقُضِي رَأْسَكِ وَامْتَشِطِي، وَأَهِلِّي بِحَجٍّ ". فَفَعَلْتُ حَتَّى إِذَا كَانَ لَيْلَةُ الْحَصْبَةِ أَرْسَلَ مَعِي أَخِي عَبْدَ الرَّحْمَنِ بْنَ أَبِي بَكْرٍ، فَخَرَجْتُ إِلَى التَّنْعِيمِ، فَأَهْلَلْتُ بِعُمْرَةٍ مَكَانَ عُمْرَتِي. قَالَ هِشَامٌ وَلَمْ يَكُنْ فِي شَىْءٍ مِنْ ذَلِكَ هَدْىٌ وَلاَ صَوْمٌ وَلاَ صَدَقَةٌ.
Reference: Sahih Al Bukhari 317