Shlomo Elyashiv (Eliashov) (January 5, 1841 [12 Tevet 5602] - March 13, 1926 [27 Adar, 5676]) (Hebrew: שלמה בן חיים חייקל אלישיב), also known as the Leshem or Ba'al HaLeshem, was a famous kabbalist, who was born in Šiauliai, Lithuania, and later moved to the Land of Israel.

Rabbi Kook was granted a month-long leave of absence to study with the famous kabbalist in Shavel.

[2] "One particularly poignant story tells of a visit the revered Leshem paid to the chief rabbi.

Rav Kook immediately took his own fur-lined coat from his closet and gave it to the elderly man as a gift.

"[2] Rabbi Elyashiv died in 1926, and is buried in Mount of Olives Jewish Cemetery in Jerusalem.