Certainly those who argue about the Signs of Allah without any authority having come to them have nothing in their hearts except pride, which they will never be able to vindicate. Therefore seek refuge with Allah. He is the All-Hearing , the All-Seeing. (Surah Ghafir, 40:56)
As well as seeing everything, Allah, Who is closer to us than our jugular veins, hears every noise in the universe. For example, He hears each noise made by all of the galaxies, planets, and celestial bodies; those made by the billions of invisible living beings living in the micro-universe, for He created them; and the noise made by a splitting seed, a flash of lightening, or a flying bird's wings. This fact is related in the following verse:
Say: “My Lord knows what is said in heaven and Earth. He is the All-Hearing, the All-Knowing.” ( Surat al-Anbiya', 21:4)
One sign of Allah's greatness and power is His hearing every noise made by all living and non-living beings. He hears—and answers—the prayers of all people who secretly turn to Him and call upon Him. Indeed, in another verse Allah states: “If My servants ask you about Me, I am near. I answer the call of the caller when he calls upon Me...” ( Surat al-Baqara, 2:186). This is quite easy for Allah, for He is everywhere at the same moment.
In addition, Allah also hears the rebels' most delicate plots, for He encompasses all things in His knowledge. No person has ever uttered a single word without Him knowing it. They will be confronted by all of their words in the Hereafter, as the Qur'an reveals:
Say: “Do you worship, besides Allah, something that has no power to harm or help you when Allah is the All-Hearing, the All-Knowing?” ( Surat al-Ma'ida, 5:76)
His Lord replied to him and turned away from him their female guile and deviousness. He is the One Who Hears, the One Who Knows. (Surah Yusuf, 12:34)