Zuìshèngzǐ 最勝子 (Skt. Jinaputra) was an Indian Yogācāra master probably active in the late sixth or early seventh century CE — i.e. one or two generations after Sthiramati 安慧菩薩 (安慧菩薩), with whom the East Asian tradition often associates him. He is known to the Chinese canon principally as the author of the Yogācāryabhūmiśāstra-vyākhyā — the Yúqié shī dì lùn shì 瑜伽師地論釋 (KR6n0002, T30n1580) — translated by 玄奘 in the mid-seventh century. The text introduces the structure and exegetical purpose of the Yogācārabhūmi (KR6n0001) and identifies Maitreya as its revealer and Asaṅga as its compiler. No biographical sources for Jinaputra survive; the dating is inferred from his familiarity with the mature seventeen-bhūmi structure and the absence of his name in pre-fifth-century witnesses. The Tibetan canon ascribes a Yogācārabhūmi-vyākhyā (Tōh. 4043) to “rGyal-bas-byin” (Jinaputra), but the relationship between the Tibetan and Chinese texts is not straightforward.