Muhammad Ali Yu Zhengui (余振贵) was a former Member of the Standing Committee of the National People’s Congress and Former Vice President and Secretary General of the China Islamic Association.
余振贵是全国人民代表大会常务委员会前委员，中国伊斯兰协会前副主席兼秘书长。
Born in Nanjing in February, 1946, of Hui ethnicity, Yu was to become renowned for his research in to the history of Islam in China, as well as ethnic and religious issues.
于于1946年2月出生于南京，是回族，因对中国伊斯兰教历史以及种族和宗教问题的研究而闻名。
Graduating from the History Department of Fudan University in Shanghai, Yu was first a teacher for Pingluo Railway Station Middle School in the Ningxia Hui Autonomous Region.
余毕业于上海复旦大学历史系，最初是宁夏回族自治区平洛火车站中学的教师。
This was followed by stints working with the Northwest Coal Mine Machinery Plant in Dawukou and the Ningxia Academy of Social Sciences, between 1974 and 1999.
随后，1974年至1999年间，他曾与大武口西北煤矿机械厂和宁夏社会科学院合作。
It was during this latter term that his future as a leading Muslim in China took shape, with Yu becoming a consultant to the China Islamic Association.
正是在后一任期内，他作为中国主要穆斯林的未来成形了，于成为中国伊斯兰协会的顾问。
Among his many, many other roles, Yu also served as the Vice President of the Chinese People’s Association for Peace and Disarmament, Secretary General of the China Religious Peace Commission and Deputy Secretary General of the Asian Religious Peace Commission.
在众多其他职务中，余还担任中国人民和平与裁军协会副主席、中国宗教和平委员会秘书长和亚洲宗教和平委员会副秘书长。
Awarded the titles of “Young and Middle-aged Expert with Outstanding Contributions” and “Advanced Individual of National National Unity”, Yu was able to enjoy special allowance of the State Council.
余被授予“中青年杰出贡献专家”和“民族团结先进个人”称号，享有国务院的特别津贴。
During his life, Yu authored more than 40 papers and 10 academic monographs that were published in journals at home and abroad. Among them, “Annotated Summary of Chinese Islamic Documents” (中国伊斯兰文献著译提要; 1993), co-authored with Yang Huaizhong (杨怀中) and signed by Yu himself, sells for ¥298.00 even today.
在他的一生中，于撰写了40多篇论文和10本学术专著，发表在国内外的期刊上。 其中，与杨怀中合著并由于本人签名的《中国伊斯兰文献注释摘要》（1993年）的《中国伊斯兰文献著译提要》，即使在今天也以298.00日元的价格出售。
Yu passed away of illness on 18 August, 2019, while the farewell ceremony for his remains was held at the China Islamic Scripture Institute in Beijing. A loyal Communist Party member, Yu’s death was described by media as a great loss to the Chinese-Islamic academic community.
于于于2019年8月18日因病去世，在北京的中国伊斯兰圣经研究所举行了遗体告别仪式。 作为一名忠诚的共产党员，Yu的死被媒体描述为对中国伊斯兰学术界的巨大损失。
Upon his passing, those expressing their condolences or attending Yu’s funeral included representatives of the National Committee of the Chinese People’s Political Consultative Conference (CPPCC), Peace Commission of Chinese Religious Circles, World Religion Research Institute of the Academy of Social Sciences, Chinese Religious Society, the Ningxia Academy of Social Sciences, Central University for Nationalities, Beijing Union University, Hui Society, Jiangsu-Iraq Association, Ningxia-Iraq Association and the Nanjing-Iraq Association.
在他去世后，表示哀悼或出席余氏葬礼的人包括中国人民政治协商会议全国委员会、中国宗教界和平委员会、社会科学院世界宗教研究所、中国宗教学会、宁夏社会科学院、中央民族大学、北京协和大学、惠学会、江苏-伊拉克协会、宁夏-伊拉克协会和南京-伊拉克协会的代表。