Commentary for Kiddushin 58:16
משתבח ליה רב חסדא לרב הונא בדרב המנונא דאדם גדול הוא א"ל כשיבא לידך הביאהו לידי כי אתא חזייה דלא פריס סודרא א"ל מאי טעמא לא פריסת סודרא א"ל דלא נסיבנא אהדרינהו לאפיה מיניה א"ל חזי דלא חזית להו לאפי עד דנסבת
Rab Judah said in Samuel's name: The halachah is, [A man] first marries and then studies. R'Johanan said: [With] a millstone around the neck, shall one study Torah! Yet they do not differ: the one refers to ourselves [Babylonians]; the other to them [Palestinians].<span class="x" onmousemove="('comment',' Rashi: The Babylonian scholars used to travel to Palestine, the home of the Mishnah; hence they were free of household worries, and so might marry before study. But the Palestinians, studying at home and bearing family responsibilities, could make no progress if married, and so they were bound to study first. Tosaf. reverses the interpretation.');"><sup>18</sup></span> R'Hisda praised R'Hamnuna before R'Huna as a great man.