Riyad-us-Saliheen
Saying 'Al-Hamdulillah' on Sneezing,
its reply and Manners relating to Sneezing and Yawning

Abu Hurairah Radi Allahu Anhu reported: The Prophet Sallalahu Alayhi Wasallam said, "Allah likes sneezing and dislikes yawning. When any one of you sneezes and says `Al-hamdu lillah (praise be to Allah)', it becomes obligatory upon every Muslim who hears him to respond with `Yarhamuk-Allah (may Allah have mercy on you)'. Yawning is from the devil. When one of you feels like yawning, he should restrain it as much as possible, for the devil laughs when one of you yawns.''
[Al-Bukhari]

Commentary:
Sneezing lightens the mind of man, and bodily he feels comfort. It is, therefore, something good and one should glorify Allah for it. Whereas, yawning is indicative of gluttony, sloth and heaviness and is considered disagreeable. The Prophet Sallalahu Alayhi Wasallam commanded us to stop it either by closing our mouth or by putting our hand across it in order to avoid an act which pleases Satan.

Abu Hurairah Radi Allahu Anhu reported: The Prophet Sallalahu Alayhi Wasallam said, "When one of you sneezes he should say: `Al-hamdu lillah (praise be to Allah),' and his brother or his companion should say to him: `Yarhamuk-Allah (may Allah have mercy on you).' When he says this he should reply: `Yahdikum-ullah wa yuslihu balakum (may Allah guide you and render sound your state of affairs).'''
[Al-Bukhari]

Commentary:  
This Hadith teaches Muslims to have good wishes for one another and to return good for good. This reciprocity increases mutual love and results in the unity, peace and dynamism of the Muslim society. May we act upon the golden principles of our religion!

Abu Musa Radi Allahu Anhu reported: The Messenger of Allah Sallalahu Alayhi Wasallam said, "When one of you sneezes and praises Allah (i.e., says Al-hamdu lillah), you should invoke Allah's Mercy upon him (i.e., say Yarhamuk-Allah); but if he does not praise Allah, you should not make a response.''
[Muslim]

Commentary:
Two senses have been attributed to this prayer of Messenger of Allah Sallalahu Alayhi Wasallam. It means to pray for the good and growth of somebody. Yet, it may also be interpreted in this way, "May Allah save you from such things as will please your opponents.''

Anas Radi Allahu Anhu reported: When two men sneezed in the presence of the Prophet Sallalahu Alayhi Wasallam, he responded to one with "Yarhamuk-Allah (may Allah have mercy on you)'' and did not respond to the other. The latter said to him: "You invoked a blessing on this man but did not do so in my case.'' The Prophet Sallalahu Alayhi Wasallam replied, "He praised Allah (i.e., he said `Al-hamdu lillah') but you did not.''
[Al-Bukhari and Muslim]

Commentary:
This Hadith tells us that we should seek Blessings of Allah only to that sneezer who says Al-hamdu lillah.

Abu Hurairah Radi Allahu Anhu reported: Whenever the Messenger of Allah Sallalahu Alayhi Wasallam sneezed, he would cover his mouth with his hand or a piece of cloth, suppressing the sound this way.
[Abu Dawud and At-Tirmidhi]

Commentary:
This Hadith stresses a very important point. In the presence of others, a sneezer is supposed to put his hand or handkerchief over his mouth so that the explosive sound may be suppressed. The other benefit of this precaution is that it avoids causing an uneasy feeling to persons sitting beside him.

Abu Musa Radi Allahu Anhu reported: The Jews used to intentionally sneeze in the presence of the Messenger of Allah Sallalahu Alayhi Wasallam hoping that he would say to them: `Yarhamukum-ullah (may Allah have mercy on you),' but he would respond with: "Yahdikum-ullahu wa yuslihu balakum (may Allah guide you and render sound your state of affairs).''
[Abu Dawud and At-Tirmidhi]

Commentary:
Here, we are told that in response to sneezing on the part of non-Muslims, we should only utter these benedictory words: "Yahdikum-ullahu wa yuslihu balakum (may Allah guide you and render sound your state of affairs)!''

Abu Sa`id Al-Khudri Radi Allahu Anhu reported: The Messenger of Allah Sallalahu Alayhi Wasallam said, "When one yawns, he should put his hand over his mouth, otherwise the devil will enter.''
[Muslim]

Commentary:  
At the time of yawning, one should put his hand across his mouth. It is a disliked act or Makruh to yawn noisily, because this act pleases Satan. In other words, we must not miss any chance to degrade and frustrate Satan.