Very informative thread.
The sufi sage Inayat Khan was open to the idea of reincarntion and professed belief in it.
Sri M or Mumtaz Ali Khan, a modern spiritual master of muslim Afghan Pathan descent, in his autobiographical book 'Apprenticed to a Himalayan Master', claims to have been an orthodox Hindu yogi in his past life and had elaborated on the same in his book.
Interestingly, as per the book, the said Hindu yogi had discriminated against a muslim sufi who had come to him as an earnest disciple seeking instruction, on the ground of religion. Demoralised by the discrimination and rejection, the sufi had committed suicide in a nearby river.
The Hindu yogi in turn was heavily reprimanded by his Guru for showing discrimination against an another human being, and due to karmic repurcussions, was reborn in a muslim family in his next life as Sri M.
Sri M, in his present life, had played a major role in building bridges between the Hindu and Muslim communities in India. Though a Muslim, he is held in great reverence in the Hindu community and have many Hindu disciples.
He was awarded the Padma Bhushan, India's third highest civilian award, in 2020.