Analysis of information sources in references of the Wikipedia article "Vũ trụ học Phật giáo" in Vietnamese language version.
Then the female developed female organs,87 and the male developed male organs.
There comes a time, bhikshus, after a long time, a seventh sun appears.
I would arise in fellowship with the gods of boundless radiance (appaman'abha deva)!'
Having developed loving kindness for seven years, he did not come to this world for seven forward and backward world cycles.
Here Ānanda, the Thus Gone One pervades the three thousandfold and the great thousandfold world system with an effulgent light, so that those sentient beings see it, then the Thus Gone One makes a sound. In this manner an announcement is made to the three thousandfold and the great thousandfold world system if he desires.
Having developed loving kindness for seven years, he did not come to this world for seven forward and backward world cycles.
Then the female developed female organs,87 and the male developed male organs.
There comes a time, bhikshus, after a long time, a seventh sun appears.
Here Ānanda, the Thus Gone One pervades the three thousandfold and the great thousandfold world system with an effulgent light, so that those sentient beings see it, then the Thus Gone One makes a sound. In this manner an announcement is made to the three thousandfold and the great thousandfold world system if he desires.
I would arise in fellowship with the gods of boundless radiance (appaman'abha deva)!'