Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
Mud in a dream is sickness, humiliation, and worry. Walking in it is worry, grief, and strife. Eating mud indicates backbiting, gossip, and consuming unlawful money.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
Mud indicates severe disease. Building with mud indicates steadfastness in religion and certainty. Whoever falls into mud falls into strife or illness.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
Mud is interpreted as strife and hardship. Getting out of it is salvation from worry and illness. Whoever sees himself kneading mud is striving for a lawful matter from which he will earn.