Fasting for those who perform ,Hajj-at-Tamattuʿ (in lieu of the Hadi which they cannot afford) may be performed up to the day of ʿArafat. And if one does not get a Hadi and has not fasted (before the ʿId) then one should fast of the days of Mina. (11, 12 and 13th of Dhul Hajja).
الصِّيَامُ لِمَنْ تَمَتَّعَ بِالْعُمْرَةِ إِلَى الْحَجِّ إِلَى يَوْمِ عَرَفَةَ فَإِنْ لَمْ يَجِدْ هَدْيًا وَلَمْ يَصُمْ صَامَ أَيَّامَ مِنًى وَعَنِ ابْنِ شِهَابٍ عَنْ عُرْوَةَ عَنْ عَائِشَةَ مِثْلَهُ
Yahya related to me from Malik from Ibn Shihab from Urwa ibn az- Zubayr that A'isha umm al-muminin used to say, "Someone performing hajj at-tamattu who does not have a sacrificial animal fasts (three days) from the time he enters ihram for the hajj till the Day of Arafa, and if he does not fast then, he fasts the days of Mina." Yahya related to me from Malik from Ibn Shihab from Salim ibn Abdullah that Abdullah ibn Umar used to say the same concerning that, as the words of A'isha, may Allah the Exalted be pleased with her.
تَقُولُ الصِّيَامُ لِمَنْ تَمَتَّعَ بِالْعُمْرَةِ إِلَى الْحَجِّ لِمَنْ لَمْ يَجِدْ هَدْيًا مَا بَيْنَ أَنْ يُهِلَّ بِالْحَجِّ إِلَى يَوْمِ عَرَفَةَ فَإِنْ لَمْ يَصُمْ صَامَ أَيَّامَ مِنًى وَحَدَّثَنِي عَنْ مَالِكٍ عَنِ ابْنِ شِهَابٍ عَنْ سَالِمِ بْنِ عَبْدِ اللَّهِ عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ أَنَّهُ كَانَ يَقُولُ فِي ذَلِكَ مِثْلَ قَوْلِ عَائِشَةَ ؓ۔