For example, there is hokku (the first line of a waka poem) of Sarumino "Hatsu shigure/saru mo komino wo/hoshige nari" (First rain of winter - the monkey too seems to want a little straw raincoat).
例えば、猿蓑の発句「初時雨猿も小蓑を欲しげ也」などがある。