Мой русский не так хороший, поэтому я пишу по-английски.
I searched the web for Chinese and English source for quite some time.
I think 安撫遠俗 very likely means "to pacify the Buddhists", that 遠俗 is a figurative term used to represent the Buddhists. At that time, 于闐 was already conquered by 喀喇汗王朝, but the nation was still not Islamised, and the Buddhist resistance was still very strong. The new Islamic wanted to seek Chinese influence to pacify the Buddhists.
https://read01.com/LJ5o8M.html
和闐城陷落後，一支逃到位於波婁之路的山上的于闐軍隊被追兵消滅。另一支退往東部山區；同當地居民一起，繼續同喀喇汗王朝軍隊戰鬥。他們利用伊斯蘭占領者不熟悉地形的有利條件，不斷出擊；進行了頑強的抵抗。在策勒波斯坦的一次戰鬥中，四位伊瑪目中所剩的三位伊瑪目全部被反抗的佛教徒打死，當地至今仍存有名為「四伊瑪目麻扎」的墳墓。于闐佛教徒的反抗大約持續了半個多世紀才逐漸停息下來。所以，于闐民間至今還有于闐和喀喇汗王朝「百年戰爭」之說。
I searched the web for Chinese and English source for quite some time.
I think 安撫遠俗 very likely means "to pacify the Buddhists", that 遠俗 is a figurative term used to represent the Buddhists. At that time, 于闐 was already conquered by 喀喇汗王朝, but the nation was still not Islamised, and the Buddhist resistance was still very strong. The new Islamic wanted to seek Chinese influence to pacify the Buddhists.
https://read01.com/LJ5o8M.html
和闐城陷落後，一支逃到位於波婁之路的山上的于闐軍隊被追兵消滅。另一支退往東部山區；同當地居民一起，繼續同喀喇汗王朝軍隊戰鬥。他們利用伊斯蘭占領者不熟悉地形的有利條件，不斷出擊；進行了頑強的抵抗。在策勒波斯坦的一次戰鬥中，四位伊瑪目中所剩的三位伊瑪目全部被反抗的佛教徒打死，當地至今仍存有名為「四伊瑪目麻扎」的墳墓。于闐佛教徒的反抗大約持續了半個多世紀才逐漸停息下來。所以，于闐民間至今還有于闐和喀喇汗王朝「百年戰爭」之說。