Some narrations mention that Lady Zahraa (PBUH) was martyred seventy five days after the messenger (PBUH&HF).…

Answer

In the name of Allah, be advised, my son, that there are three narrations; the second one says seventy five and the third one says ninety five, which is better than the first and second. However, it is recommended to commemorate Lady Zahraa’s martyrdom in all the three dates in order not for us to miss any reward that might be obtained through holding memorial gatherings on the day of her martyrdom. Allah is the all –Helper.