Does the emission of white fluid—like wady—after prostatic massage necessitate ghusl (ritual bath), and is its emission considered janabah (state of ritual impurity)?

The jurists differed regarding the obligation of ghusl (ritual bath) upon the emission of semen due to illness or cold, not out of desire. Abu Hanifa and Malik were of the opinion that it is not obligatory, while Al-Shafi'i made it obligatory, citing "when she sees water" and "water from water."

Those who held the view that it is not obligatory cited that the Prophet (peace be upon him) described the semen that necessitates ghusl as being white and thick. They also cited his saying to Ali: "If you spurt water, then perform ghusl" and "If you see water spurted, then perform ghusl." "Fadhkh" (spurt) signifies the forceful emission of water. They also argued that "when she sees water" refers to a wet dream, and the emission of water in that context is out of desire, and that the other hadith is abrogated.

Based on this, ghusl is not obligatory in this case. Rather, wudu (ablution) is obligatory according to the majority of jurists. Performing ghusl as a precaution and to avoid scholarly اختلاف (difference of opinion) is good.