After hearing this advice of Rasulullah (s.a.w.) Hadhrat Aisha (r.a.) practised upon it throughout her life with her heart and soul. (Mustadraak Haakim)
On one occasion an Iranian neighbour of Rasulullah (s.a.w.) invited him to partake of meals at his home. Rasulullah (s.a.w.) replied that he would accept the invitation on condition that Hadhrat Aisha (r.a.) could also accompany him. The Iranian declined and Rasulullah (s.a.w.) said, "In that case I cannot accept your invitation."
The reason for Rasulullah (s.a.w.) declining the invitation was that at that time Rasulullah's (s.a.w.) household was in poverty and were suffering from the pangs of hunger. This is why Rasulullah (s.a.w.) did not think it appropriate to indulge himself in a meal while his beloved wife was suffering from hunger at home.
The Iranian returned again and invited Rasulullah (s.a.w.) to join him for meals. Rasulullah (s.a.w.) again requested permission for Hadhrat Aisha (r.a.) to accompany him and when the Iranian declined, Rasulullah also declined the invitation.
The host returned for the third time and again invited Rasulullah (s.a.w.) to join him for meals and when Rasulullah (s.a.w.) requested permission for Hadhrat Aisha (r.a.) to join him, this time the host granted him permission. Rasulullaah (s.a.w.) then joined him for meals accompanieds by Hadhrat Aisha (r.a.).
The neighbour declined the first two times because meals had been prepared for one person only and on the third, preparations had been made to accommodate Hadhrat Aisha (r.a.) as well. (Muslim)
(From 'Hundred Stories of Hadhrat Aisha (r.a.)' By Moulana Shuaib Saror)