Answered by Shaykh Faraz Rabbani
What does one do if one has not fasted for some days in the previous Ramadan now that another Ramadan is about to start?
Walaikum assalam,
Keep track of them, and make them up after. There is no expiation for this delay in the Hanafi school. [Ibn Abidin]
Walaikum assalam,
Faraz Rabbani.