Answered by Ustadh Tabraze Azam
Kindly tell me the method of tayammum for females, when they are on journey and there is no water or soil available for tayammum( dry ablution) ?
Answer: Wa alaikum assalam wa rahmatullahi wa barakatuh,
I pray that this finds you in the best of health and spirits, insha’Allah.
It is permitted to perform the dry ablution (tayammum) with a valid excuse– such as being roughly one mile or so away from any water.
How to Perform Tayammum Intend to lift the state of ritual impurity,  say the basmala,  strike the earth [or anything of the top surface of the earth like a stone],  wipe your face entirely,  strike the earth [or its equivalent] a second time,  wipe the right arm completely up to and including the elbow, and then the left arm likewise. [`Ala’ al-Din `Abidin, al-Hadiyya al-`Ala’iyya; Shurunbulali, Ascent to Felicity]
And Allah alone gives success.
Checked & Approved by Faraz Rabbani