Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
The palm in a dream indicates sufficiency and sustenance. An open palm indicates generosity, and a closed one indicates stinginess. A severed palm indicates abandoning prayer.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
The palm indicates work. Whoever sees his palm become large, his sustenance will increase.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
The palm is interpreted as wealth. Whoever sees something in his palm will gain wealth.