Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
Pearls in a dream indicate the Quran and knowledge. Whoever sees himself drilling a pearl is interpreting the Quran correctly. Scattered pearls indicate children or servants. Swallowing pearls indicates concealing knowledge and wisdom.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
Pearls indicate an inheritance or lawful money. Whoever sees himself buying pearls has bought a beautiful maidservant or learned useful knowledge. A single pearl indicates a baby boy.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
Pearls are interpreted as a beautiful woman or a righteous son. Whoever sees himself emitting pearls from his mouth is speaking good words and wisdom.