Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
Dry ablution in a dream indicates travel or illness. It is imminent relief. Whoever sees himself performing dry ablution will be saved from hardship.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
Dry ablution indicates fulfilling a need when it is difficult. For the sick, it is evidence of approaching death.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
Dry ablution is interpreted as relief. Whoever sees himself performing dry ablution will embark on a blessed journey.