The Ruling on Yawning and Seeking Refuge from It

Question:
And other than that, Honorable Shaykh, may Allah grant you success, is yawning a rejection of Satan, such that the one who yawns seeks refuge in Allah from Satan the outcast?

Answer:
The Prophet (peace and blessings be upon him) informed us that generosity is from Allah (Glorified and Exalted is He), and therefore it is prescribed to give after receiving, because it is a blessing from Allah. As for pessimism, it is from Satan, and therefore pessimism is forbidden. If pessimism overcomes him, let him put his hand over his mouth and hold it in as much as he can, not raising his voice with the yawn; he holds it in as much as he can, because it is from Satan, and it indicates laziness and sluggishness. So he resists the yawn as much as he can. If he can prevent it, he prevents it. If he cannot prevent it, he covers it. At the very least, he places his garment or his sleeve over his mouth and does not leave it open. As for saying, "I seek refuge in Allah from Satan the outcast," that is what has been transmitted.