Issue 350: Tayammum is valid on soil, pebbles, clod, stones, baked clay like bricks, baked lime or plaster, provided that they are pure.

Issue 351: Tyammum is also valid on limestone, gypsum, basalt and other types of stones, but it is not valid on jewels such as agate or turquoise.

Issue 352: If the above mentioned things on which Tayammum is valid are not available, one must perform Tayammum on the dust gathered on carpets, clothes, and the like, but not the dust which has penetrated into these things, unless one moves or touches the object in such a way that the dust lies on its surface, and then performs their Tayammum. If there is even no dust, one must perform their Tayammum on mud, and if there is no mud, then one must offer their prayers without Tayammum and offer the Quadha prayers later.

Issue 353: If a person is certain that Tayammum is valid on something and performs Tymmum on it, but then they learn that Tayammum has been void on it, they must say those prayers again.

Q354: Is it permissible to perform Tayammum on beach sands? What would the case be if the sands are wet?

A: It is permissible.

Q355: If one has a blood clot on their palm which is not possible to purify, is it permissible to remove the blood clot and then perform Taymmum using their back of the hands.

A: In my recent view, to purify one's palm in such a case, it suffices to remove the blood clot, however, despite the fact that the purity of the wiping part (i.e., palms in this case) is not a necessary condition, as a recommended precaution it should be maintained, and if it is not possible to purify the palm even by the removal of the blood clot, one can perform Tyammum with the same palm (without purification), because the impurity will not be transmitted to the back of the hands.

Q356: Is it permissible to perform Tayammum on paper?

A: It is absolutely not permissible, but to prostrate on it is allowed.