The Lotus Sūtra 4.28

4.28

爾時佛告羅睺羅：「汝於來世當得作佛，號蹈七寶華如來、應供、正遍知、明行足、善逝、世間解、無上士、調御丈夫、天人師、佛、世尊。當供養十世界微塵等數諸佛如來，常為諸佛而作長子，猶如今也。是蹈七寶華佛，國土莊嚴，壽命劫數，所化弟子，正法、像法，亦如山海慧自在通王如來無異，亦為此佛而作長子。過是已後，當得阿耨多羅三藐三菩提。」

Then the Buddha told Rāhula: 'In a future age you shall become a Buddha named Saptaratnapadmavikrāmī Tathāgata, Arhat, Samyaksambuddha, Vidyācaraṇasaṃpanna, Sugata, Lokavid, Anuttara, Puruṣadamyasārathi, Śāstā Devamanuṣyāṇām, Buddha, Bhagavat. You shall make offerings to Buddha-Tathāgatas as numerous as the dust motes of ten worlds, and shall always be the eldest son of those Buddhas, just as you are now. The adornment of the land of this Buddha Saptaratnapadmavikrāmī, the count of his lifespan and kalpas, the disciples he converts, and the True Dharma and Semblance Dharma shall be identical and no different from those of the Tathāgata Sāgaravaradhara-buddhi-vikrīḍitābhijña; you shall also be this Buddha's eldest son. After passing through this, you shall attain anuttarā samyaksambodhi.'