Volume 009, Book 093, Hadith Number 469Narrated By Ibn Abbas :
When the Prophet sent Muadh to Yemen, he said to him, "You are going to a nation from the people of the Scripture, so let the first thing to which you will invite them, be the Tauhid of Allah. If they learn that, tell them that Allah has enjoined on them, five prayers to be offered in one day and one night. And if they pray, tell them that Allah has enjoined on them Zakat of their properties and it is to be taken from the rich among them and given to the poor. And if they agree to that, then take from them Zakat but avoid the best property of the people."
Volume 009, Book 093, Hadith Number 470Narrated By Mu'adh bin Jabal :
The Prophet said, "O Mu'adh! Do you know what Allah's Right upon His slaves is?" I said, "Allah and His Apostle know best." The Prophet said, "To worship Him (Allah) Alone and to join none in worship with Him (Allah). Do you know what their right upon Him is?" I replied, "Allah and His Apostle know best." The Prophet said, "Not to punish them (if they do so)."
Volume 009, Book 093, Hadith Number 471Narrated By Abu Said Al-Khudri :
A man heard another man reciting (in the prayers): 'Say (O Muhammad): "He is Allah, the One." (112.1) And he recited it repeatedly. When it was morning, he went to the Prophet and informed him about that as if he considered that the recitation of that Sura by itself was not enough. Allah's Apostle said, "By Him in Whose Hand my life is, it is equal to one-third of the Qur'an."
Volume 009, Book 093, Hadith Number 472Narrated By 'Aisha :
The Prophet sent (an army unit) under the command of a man who used to lead his companions in the prayers and would finish his recitation with (the Sura 112): 'Say (O Muhammad): "He is Allah, the One."' (112.1). When they returned (from the battle), they mentioned that to the Prophet. He said (to them), "Ask him why he does so." They asked him and he said, "I do so because it mentions the qualities of the Beneficent and I love to recite it (in my prayer)." The Prophet; said (to them), "Tell him that Allah loves him."
Volume 009, Book 093, Hadith Number 473Narrated By Jarir bin 'Abdullah :
Allah's Apostle said, "Allah will not be merciful to those who are not merciful to mankind."
Volume 009, Book 093, Hadith Number 474Narrated By Usama bin Zaid :
We were with the Prophet when suddenly there came to him a messenger from one of his daughters who was asking him to come and see her son who was dying. The Prophet said (to the messenger), "Go back and tell her that whatever Allah takes is His, and whatever He gives is His, and everything with Him has a limited fixed term (in this world). So order her to be patient and hope for Allah's reward." But she sent the messenger to the Prophet again, swearing that he should come to her. So the Prophets got up, and so did Sa'd bin 'Ubada and Mu'adh bin Jabal (and went to her). When the child was brought to the Prophet his breath was disturbed in his chest as if it were in a water skin. On that the eyes of the Prophet. became flooded with tears, whereupon Sa'd said to him, "O Allah's Apostle! What is this?" The Prophet said, "This is mercy which Allah has put in the heart of His slaves, and Allah bestows His mercy only on those of His slaves who are merciful (to others)." (See Hadith No. 373, Vol. 2)