Final answer:
Bhai Kanhaiya, later known as Kanhaiya Singh, administered water to the dying soldiers of both Sikh and Muslim communities in the battle of Anandpur Sahib. This humanitarian deed demonstrated the Sikh ethos of impartial aid and compassion. Sikhism, to which both Bhai Kanhaiya and Guru Tegh Bahadur belonged, emphasizes universal brotherhood and was established by Guru Nanak Dev Ji.
Step-by-step explanation:
In the battle of Anandpur Sahib, it was Bhai Kanhaiya (later became Kanhaiya Singh) who compassionately gave water to all dying soldiers, irrespective of whether they were Sikhs or Muslims. This act of kindness exemplified the Sikh principles of universal brotherhood and humanity. Bhai Kanhaiya believed in the teaching of Sikh Gurus that espoused compassion and mercy to all, not just to one's own community.
Guru Tegh Bahadur, the ninth of the eleven Sikh Gurus, was executed by Mughal Emperor Aurangzeb. He was a leader of the Sikh religion, which was founded by Guru Nanak Dev Ji in the 15th century and combines elements of Hinduism and Islam. The Sikh resistance against Mughal persecution became even more pronounced after the martyrdom of Guru Tegh Bahadur.