伺 is built from the 亻 (person (left)) and 司 components.
It reads シ like 司, as do 飼 and 詞 — learn 司 once and the family's reading comes with it.
A common word using 伺 is 伺う (うかがう), meaning “humble form of 行く (いく), 聞く (きく) and 来る (くる)”.
Don't confuse it with 司, 詞, and 飼.
