Can you confirm if Aeisha (radhiallahu 'anha) said this about the Prophet: "His character is the Qur'aan". I have spent hours searching for the daleel but to no avail. Your help will be much appreciated.

Does falling into sin indicate that there is something wrong with one's 'aqeedah (belief system)?

When a person repents, he makes a vigorous start and says: "The Shaytaan is telling me to slow down", so he does more acts of worship. Then his enthusiasm cools down, and he says: "Allah does not burden any person beyond his scope", and his acts of worship become less until he goes back to the way he was. 

My question: What advice can you give? Should he make a vigorous start, or take a gradual approach until it is established and then add more after a while, or should he follow the saying: "When your wind blows, then make the most of it"?.

Allah tells us in the Qur'an not to cut off our blood relations. What is the interpretation of the Ayah that commands us not to severe ties of kinship? Who does it refer to? Just parents and siblings? What if one maintains contact with one's parents only through telephone or letters although he is capable of visiting them. Yet, he feels that maintaining a certain distance is healthier to the relationship ?

Can a muslim pray for his non-mulsim mother who has passed away?

If one Muslim brother loves another Muslim brother, does he have to say to this brother "I love you for the sake of Allah?

Is it permissible to ask the Muslims -when meeting with them- about the state of their faith or their hearts? One of them said to me that this is a matter of the unseen and that it is not appropriate to ask about it.

What is the definition of gheebah and what is the ruling on it?

For how long does Allah forgive a person's sin? If he repents and seeks forgiveness from his sin, then goes and commits the same sin again, then he seeks forgiveness again then commits the same sin again, and so on, does Allah forgive him or does that mean that he is not sincere towards Allah, especially if he repeats that sin after a short while, but he does not stop seeking forgiveness?

What is zuhd (asceticism)? Does it mean wearing scruffy clothing, fasting constantly, and keeping away from society, or something else?

What are the signs of Allah's love for His slave?

I want to make my children keen to pray, because they will pray once then forget about prayer many times. I always advise them and pray to Allah to guide them. How can I encourage them and make them love prayer?.