A kotton became bar mitzva in Israel and then flies to America where it is the previous day. Is he considered bar mitzva or does he revert back to katnus?
A kotton bentched before Tzeis and then became bar mitzva and is still satiated - must he bentch again?
[חקירות הגר"מ קליין זצ"ל - עי' משנה הלכות י"ח סי' ר"צ]
