Watering a Garden and Crops
Scholars have interpreted that seeing oneself drawing water and using it to water a garden or crops may signify acquiring wealth from a woman. If the garden or crops bear fruit, one might gain wealth and a child from that woman. Watering a garden and crops can also symbolize marital intimacy. Water in a glass cup represents a child; if the cup breaks but the water remains, the mother dies and the child lives, and if the water disappears but the cup remains, the child dies and the mother lives.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam