《旧唐书·列传·卷一百三十六》
吉温在范阳与安禄山辞行，禄山命令沿路馆舍驿站制作白色丝绸的帐幕迎候他，并命他的儿子安庆绪相送出辖境，下马走出驿站数十步。
温于范阳辞，禄山令累路馆驿作白帐以候之，又令男庆绪出界送，拢马出驿数十步。
When Ji Wen visited An Lushan in Fanyang to bid farewell, Lushan ordered all the guesthouses and post stations along the way to prepare white silk tents to welcome him and ordered his son, An Qingxu, to escort him out of the territory and dismount and walk out of the post station for dozens of steps.