Seeing a pecan in your dream indicates that you are dealing with someone who is selfish and may make negative comments about others. Such individuals can create stress in your life. However, pecans also symbolize health, suggesting that you are physically well. Therefore, this dream serves as a warning and makes you aware of the nature of the people around you.
From Imam Muhammad Ibn Seerin's Dictionary of Dreams According to Islamic Inner Traditions â entry "Pecan" (page 324) â resolved via the equivalent "Walnut" entry.
A walnut tree in a dream represents a stingy foreigner, a backbiter, a slanderer, a difficult person who cares only for his selfish interests. A walnut in a dream also represents a healthy body, or it could mean extensive travelling.
Playing with walnut in a dream means playing with unlawful earnings. If a woman sees a walnut tree in her dream, it means longevity. A walnut in a dream also means a husband. Crushed walnuts in a dream mean easy money. Eating pecans from a hickory tree in a dream means speaking the truth.
Note: Islamic dream interpretation depends on the dreamer's circumstances and state. This is a general guide drawn directly from the source book.