Musar for Shabbat 193:8

מרה"י לרה"י כו':

Whence [is it learnt] that he was smitten? — Because it is written, And the Lord said furthermore unto him, Put now thine hand into thy bosom, etc.<span class="x" onmousemove="('comment',' Ex. IV, 6; he was smitten with leprosy, Ibid. ');">¹⁵</span> Raba-others state, R. Jose b. R. Hanina-said: The dispensation of good comes more quickly than that of punishment [evil]. For in reference to the dispensation of punishment it is written, until he took it out, and behold, his hand was leprous, as white as snow;<span class="x" onmousemove="('comment',' It became leprous only when he took it out. ');">¹⁶</span>

Shemirat HaLashon