"A woman lifted up a child of hers from a howdah (litter) and said: 'O Messenger of Allah, is there Hajj for this one?' He said: 'Yes, and you will be rewarded.'''(sahih)

رَفَعَتِ امْرَأَةٌ صَبِيًّا لَهَا مِنْ هَوْدَجٍ فَقَالَتْ يَا رَسُولَ اللَّهِ أَلِهَذَا حَجٌّ قَالَ نَعَمْ وَلَكِ أَجْرٌ

Yahya related to me from Malik from Ibrahim ibn Uqba from Kurayb the mawla of Abdullah ibn Abbas from Ibn Abbas that the Messenger of Allah ﷺ passed a woman in a litter and it was said to her, "This is the Messenger of Allah ﷺ" and she took the forearms of a young boy who was with her and said, "Does this one have a hajj, Messenger of Allah?" and he said, "Yes, and you have a reward."

أَنَّ رَسُولَ اللَّهِ ﷺ مَرَّ بِامْرَأَةٍ وَهِيَ فِي مِحَفَّتِهَا فَقِيلَ لَهَا هَذَا رَسُولُ اللَّهِ ﷺ فَأَخَذَتْ بِضَبْعَىْ صَبِيٍّ كَانَ مَعَهَا فَقَالَتْ أَلِهَذَا حَجٌّ يَا رَسُولَ اللَّهِ قَالَ نَعَمْ وَلَكِ أَجْرٌ

[Machine] The Messenger of Allah ﷺ passed by a woman in her abode and she brought out a child. She asked, "O Prophet of Allah, is this child performing Hajj?" He said, "Yes, and you will have reward for it."

مَرَّ رَسُولُ اللهِ ﷺ بِامْرَأَةٍ فِي مِحَفَّتِهَا فَأَخْرَجَتْ صَبِيًّا فَقَالَتْ يَا نَبِيَّ اللهِ أَلِهَذَا حَجٌّ؟ قَالَ «نَعَمْ وَلَكِ أَجْرٌ»

"عَنْ جَابِرٍ قَالَ: اطَّلَعَتِ امْرَأَةٌ مِنْ هَوْدَجٍ لَهَا وَمَعَهَا صَبِىٌّ فَقَالَتْ: يا رَسُولَ الله: أَلِهَذَا حَجٌّ؟ قَالَ: نَعَمْ وَلَكِ أَجْرٌ".