大方廣佛華嚴經願行觀門骨目 2.16

2.16

爾時心王菩薩告諸菩薩言：「娑婆一劫為極樂一日一夜，袈裟幢等更有九重，如是以劫而為一日一夜。」最後云：「乃至過百萬阿僧祇界，最後世界一劫，於勝蓮華界賢勝佛剎為一日一夜。普賢等諸同行大菩薩充滿其中（竝語佛剎，末云已曾成佛）。」

At that time, the Bodhisattva Mind King addressed all the bodhisattvas: "One kalpa in Sahā is one day and one night in Sukhāvatī. With Kaṣāyadhvaja and so forth, there are another nine levels; thus kalpas make one day and one night." Finally it says: "…up to passing beyond one million asaṃkhyeya realms, one kalpa in the final world is one day and one night in the Bhadravijaya buddha-land of the realm Padmavijayā. Great bodhisattvas of the same practice, such as Samantabhadra, fill it entirely (this speaks throughout of buddha-lands; at the end it says that they have already attained buddhahood)."