Is Sawm observed by a person abandoning Salah considered valid?

Q 5: Some people observe Sawm (Fast) during Ramadan, but they do not offer Salah (Prayer). Will their Sawm be accepted by Allah?

A: Allah does not accept the Sawm of the people who abandon offering Salah unless they turn to Allah in repentance and start performing Salah again. This is based on the Hadith in which the Prophet Muhammad (peace be upon him) said: What stands between a Muslim and disbelief is his abandonment of Prayer. Allah does not accept any good deed by the Kafir (disbeliever). (Part No. 9; Page No. 40) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.