This may be the only Mordechai Gebirtig songs in the Zhelonek collection, which I find mildly surprising since his songs, often considered even during his lifetime to be "folk songs," were very popular in Poland in the 1920s and 1930s.
Reyzele was, and is, one of Gebirtig's most famous songs. I considered recording it but really, nobody will ever top this mp3 of the absolutely wonderful Menashe Oppenheim and pianist Harry Lubin (who also accompanied him on their iconic "Nisim, nisim") so I wouldn't dare to try. Just have a listen to them!!
And here you can buy my sheet music for Reyzele with text, chords, transliteration, and translation: