Exclaiming to Rav Nachman bar Yitzchak, "Tanu'ach Da'atcha SheHinachta Et Da'ati" [May your mind rest, for you have put my mind to rest!]: Pesachim 32b [See R' Yosi]
Labeled "Ari SheBaChaburah" - the Lion of the Group - by Rava: Shabbat 111b
R' Chiyya bar Avin reporting how Abayye and Rava leaned while reciting the Prayers of Supplication [Tachanun]: Megillah 22b-23a
