At that...

At that, He -asws said: \u2018There were born unto Adam -as , seventy pregnancies (of Hawwa -as ), in each pregnancy was a slave and a maid (boy and a girl) up to the killing of Habeel -as . When Qabeel -la killed Habeel -as , Adam -as was aggrieved upon Habeel -as with such grief that he -as cut off from the women. So, he -as remained without union with Hawwa -as for five hundred years.

Then his -as grief which was with him -as subsided, so he \u2011as had union with Hawwa -as , and Allah -azwj Granted to him -as , one thing, and there was no second along with it (single birth, not twins).