Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
Saliva in a dream is a man's wealth and strength. Its flowing indicates loss of wealth. Its dryness indicates poverty.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
Saliva indicates knowledge and wisdom. Whoever sees his saliva flow will gain knowledge.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
Saliva is interpreted as wealth. Whoever sees himself lick his saliva is consuming from his wealth.