Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
The fingers of the hands in a dream indicate children or the five daily prayers. Their increase is an increase in goodness. Their decrease is a decrease in it. Interlacing them indicates the gathering of family.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
Fingers indicate servants and helpers. Their cutting off indicates the loss of a helper.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
Fingers are interpreted as relatives. The thumb indicates the father, and the index finger indicates the mother.