It is narrated from Sayyiduna Qais bin Asim (may Allah be pleased with him) that he came to the Noble Prophet (peace and blessings be upon him) and requested to meet him in private. (The Prophet, peace and blessings be upon him, met him in private.) So he accepted Islam, and the Prophet (peace and blessings be upon him) instructed him to perform ghusl (ritual bath) with water and lote tree (berry) leaves.