Is the marriage contract of a Muslim man, married to his wife, annulled if he commits the abomination of adultery several times and repents, then ceases to pray for 6 months and then repents and returns to performing the prayers?

Adultery is one of the gravest sins, but it does not annul the marriage contract according to the general consensus of scholars. Abandoning the obligatory prayers is also one of the gravest sins. If a man abandons prayer out of denial of its obligation, he has disbelieved and his marriage is annulled, unless he repents before the waiting period of his wife ends. However, if he abandons it out of laziness, then according to the majority of scholars, his marriage is not annulled.