Quotes from Laṅkāvatāra Sūtra, Vol. 7
“Mahamati, this realm of the tathagatagarbha is primarily undefiled and is beyond all the speculative theories of the sravakas, pratyekabuddhas, and philosophers; but it appears to them devoid of purity, as it is soiled by these external defilements.”
《入楞伽經》卷七
「大慧！此如來心阿梨耶識如來藏諸境界，一切聲聞辟支佛諸外道等不能分別，何以故？以如來藏是清淨相，客塵煩惱垢染不淨。」