Guidance (hidāyah) is: a) [b]elucidation (bayān) and indication (dalālah)[/b] (to the path), then b) [b]success (tawfīq) and inspiration (ilhām)[/b] (in following the path).
That which the majority of the Muslims are upon from the Salaf and the Khalaf is that Allāh the Exalted creates for a wisdom and commands for a wisdom.
When a man suffers from what is called “influenza”—this being an illness despite which a man is still able to leave his house, though it is a “contagious illness” as the doctors say—would it be permitted for this man to pray in his house...
However, it is not the case that a healthy person, merely by mixing with a person who has a transmissible disease, that this disease will necessarily transmit to this healthy person.
They used to believe that when the sick person mingled with the healthy, he would make them become sick and pass his disease to them. Likewise [did they believe] regarding camels. So the Prophet [sas] negated that and falsified it.
[Go ahead], flee from the leper as you would flee from a lion, (for its meaning) is that there is no contagion, he will not pass [his leprosy] to you...