Is holding a mourning gathering for the deceased woman in the mosque, especially when it transforms into a remembrance circle and a reminder of death, considered an innovation (bid'ah), particularly since the intention was sincere to compensate for the absence of the deceased's family abroad?

The sisters are rewarded for their compassion and kindness towards their sick colleague, as this is the relationship that should exist among Muslims, especially in times of hardship. However, their gathering and coming together to hold a mourning ceremony is not from the Sunnah and is considered wailing (niyaha), whether in the mosque or elsewhere. They should not have done it, because it is not from the practice of the righteous predecessors (Salaf), and it could turn into a custom involving forbidden acts. They should have limited themselves to offering condolences to the deceased's two sons, condolences that conform to the Sunnah and are free from innovations, such as the family of the deceased preparing food and gathering for it, because that is part of wailing.