Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
A mouse in a dream is a corrupt woman or a thief. Many mice indicate sustenance and fertility. Whoever sees a mouse playing in his house, his sustenance will increase.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
A mouse indicates a Jewish man or a thief. Whoever catches one has gained control over a corrupt woman.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
A mouse is interpreted as a servant. Whoever sees himself kill a mouse is firing a servant.