Q 2:
What are the deeds that expiate the sins of a person who does not pray?
A:
A person who is Mukallaf (person meeting the conditions to be held legally accountable for their actions) and abandons Salah (Prayer) deliberately is regarded a disbeliever and apostate. Nothing can expiate such a sin except sincere repentance and establishment of Salah. This is because the Prophet (peace be upon him) said,
Abandonment of Salah makes a Muslim in the rank of disbelievers and Mushrik (one who associates others with Allah in His Divinity or worship).
Allah (Exalted be He) says,
But if they repent, perform As-Salât (Iqâmat-as-Salât) and give Zakât, then they are your brethren in religion.
May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.