瑜伽論記 6.50

6.50

如是疑隨逐故者，結初暗障。障礙能遣疑因緣故者，結後三種障，精勤少睡正食身調順觀諦法，不欲雜居如理作意，是能除遣疑之因緣，後三障此，故說為障礙能遣疑。

'Because doubt pursues in this way' concludes the initial dark obstacle. 'Because it obstructs the causes and conditions capable of dispelling doubt' concludes the latter three obstacles: diligence with little sleep, proper eating so that the body is harmonious, contemplation of the dharmas of truth, not desiring mixed dwelling, and proper mental engagement are the causes and conditions capable of dispelling doubt; because the latter three obstruct these, they are said to 'obstruct what can dispel doubt.'