וַתֹּ֣אמֶר שָׂרָ֔ה צְחֹ֕ק עָ֥שָׂה לִ֖י אֱלֹהִ֑ים כָּל־הַשֹּׁמֵ֖עַ יִֽצְחַק־לִֽי׃
And Sarah said: ‘God hath made laughter for me; every one that heareth will laugh on account of me.’
Read halakhic rulings (Jewish law) on Genesis 21:6: and classical halakhic sources.