There is no standard Jain rite called “guru vidai” (farewell to the guru) after Chaturmas. In Jainism, the Guru Purnima festival is observed to venerate gurus at the outset of Chaturmas, commemorating the grant of spiritual guidance, and it emphasizes paying respect to the teacher. After Chaturmas, disciples continue their practices; there isn’t a fixed farewell ritual for a guru in the traditional calendar. You can read more about Guru Purnima and its link to Chaturmas here and about the start/end of Chaturmas here .